CW Moss sells a kit to add the turn signals to your existing halogen headlights. Part #B-13026-TS12. $20.00 This is from a 1999 catalog and it says you have to drill your existing reflector. The one I bought from them about two years ago for the same price just clipped on to the halagon bulb. I think I had to poke a hole in the rubber boot that fit on the back of the halogen bulb to pass the wires through. www.cwmoss.com